Observation of the Naive-T-odd Sivers Effect in Deep-Inelastic Scattering - INSPIRE

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Observation of the Naive-T-odd Sivers Effect in Deep-Inelastic Scattering

HERMES

Collaboration

•

A. Airapetian
(
- Giessen U. and
- Michigan U.
)

Jun, 2009

6 pages

Published in:

Phys.Rev.Lett. 103 (2009) 152002

e-Print:

0906.3918 [hep-ex]

DOI:

10.1103/PhysRevLett.103.152002

Report number:

DESY-09-089

Experiments:

DESY-HERA-HERMES

View in:

ADS Abstract Service

reference search413 citations

Citations per year

Abstract: (arXiv)

Azimuthal single-spin asymmetries of lepto-produced pions and charged kaons were measured on a transversely polarized hydrogen target. Evidence for a naive-T-odd, transverse-momentum-dependent parton distribution function is deduced from non-vanishing Sivers effects for pi+, pi0, and K+, K-, as well as in the difference of the pi+ and pi- cross sections.

Note:

6 pages, 4 figures

13.88.+e
13.60.-r
14.65.-q
14.20.Dh
electron p: semi-inclusive reaction
parton: distribution function
hydrogen: polarized target: transverse
transverse momentum dependence
deep inelastic scattering
spin: asymmetry

References(36)

Figures(6)

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